Traxxas TRX-4M Brushless Power System!
The TRX-4M® Brushless Power System gives you up to 50% more speed, more crawling torque, and greater precision than brushed power systems. Rip wheelies in your monster truck or navigate a technical crawling course in your custom High Trail® rig. The new TRX-4M Brushless Power System gives you the best of both worlds!